Study for the ACVPM Infectious Diseases Exam with engaging quizzes, flashcards, and detailed explanations. Prepare thoroughly and enhance your knowledge to excel in the test!

Multiple Choice

Which clinical sign is characteristic of AHS?

Supraorbital swelling is a hallmark finding in African Horse Sickness. Infected horses commonly develop marked edema of the face, especially around the eyes and supraorbital region, giving a puffy, swollen appearance. This facial edema results from vascular leakage and inflammation caused by the virus, and it is more characteristic of AHS than fever, cough, or lameness, which can occur with many other conditions. While fever and respiratory signs may accompany the disease depending on the form (cardiac or pulmonary), the pronounced periorbital swelling tends to stand out as a distinctive clue pointing toward AHS.

Supraorbital swelling is a hallmark finding in African Horse Sickness. Infected horses commonly develop marked edema of the face, especially around the eyes and supraorbital region, giving a puffy, swollen appearance. This facial edema results from vascular leakage and inflammation caused by the virus, and it is more characteristic of AHS than fever, cough, or lameness, which can occur with many other conditions. While fever and respiratory signs may accompany the disease depending on the form (cardiac or pulmonary), the pronounced periorbital swelling tends to stand out as a distinctive clue pointing toward AHS.